European Central Bankers Fear US Interventions May Disrupt Global Financial Stability

European central bankers are on high alert following recent US interventions in currency and government debt markets. The moves have raised concerns that established norms of international financial cooperation may no longer hold.

The Fed's participation with Japan to support the yen after sharp movements has strained policy trust among European officials, who were not given advance notice as is normally expected. Some view this omission as evidence of Washington acting unilaterally, while others suggest it was an oversight due to the transaction's unusual nature.

US Treasury Secretary Scott Bessent confirmed that Washington used foreign-currency assets in its Exchange Stabilization Fund to buy yen, including selling euros. He characterized the sale of euros as a reallocation of US resources.

Besides the yen intervention, European officials are also watching the Treasury's plans to expand buybacks of longer-dated US government securities. These transactions could require the Treasury to issue more short-term debt, potentially restraining borrowing costs through unconventional market intervention. Some question whether the administration might eventually pressure the Fed to buy bonds directly if Treasury operations provide only temporary relief.